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| author | Magnus Damm <damm@igel.co.jp> | 2009-07-08 13:22:18 +0200 |
|---|---|---|
| committer | Rafael J. Wysocki <rjw@sisk.pl> | 2009-07-22 00:28:38 +0200 |
| commit | 4a256b5fc028e6dad0fd1b59745f743ee528c944 (patch) | |
| tree | 1c2c17ccb80051c16ee9e16ea74194bd69fac72f /drivers/dma | |
| parent | 79ee031ff6fd23a1a2a4f783cfc3421885304ce3 (diff) | |
| download | linux-stable-4a256b5fc028e6dad0fd1b59745f743ee528c944.tar.gz linux-stable-4a256b5fc028e6dad0fd1b59745f743ee528c944.tar.bz2 linux-stable-4a256b5fc028e6dad0fd1b59745f743ee528c944.zip | |
DMA: Rework dw_dmac suspend_late()/resume_early()
This patch reworks platform driver power management code
for dw_dmac from legacy late/early callbacks to dev_pm_ops.
The callbacks are converted for CONFIG_SUSPEND like this:
suspend_late() -> suspend_noirq()
resume_early() -> resume_noirq()
Signed-off-by: Magnus Damm <damm@igel.co.jp>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Diffstat (limited to 'drivers/dma')
| -rw-r--r-- | drivers/dma/dw_dmac.c | 15 |
1 files changed, 10 insertions, 5 deletions
diff --git a/drivers/dma/dw_dmac.c b/drivers/dma/dw_dmac.c index 98c9a847bf51..933c143b6a74 100644 --- a/drivers/dma/dw_dmac.c +++ b/drivers/dma/dw_dmac.c @@ -1399,8 +1399,9 @@ static void dw_shutdown(struct platform_device *pdev) clk_disable(dw->clk); } -static int dw_suspend_late(struct platform_device *pdev, pm_message_t mesg) +static int dw_suspend_noirq(struct device *dev) { + struct platform_device *pdev = to_platform_device(dev); struct dw_dma *dw = platform_get_drvdata(pdev); dw_dma_off(platform_get_drvdata(pdev)); @@ -1408,23 +1409,27 @@ static int dw_suspend_late(struct platform_device *pdev, pm_message_t mesg) return 0; } -static int dw_resume_early(struct platform_device *pdev) +static int dw_resume_noirq(struct device *dev) { + struct platform_device *pdev = to_platform_device(dev); struct dw_dma *dw = platform_get_drvdata(pdev); clk_enable(dw->clk); dma_writel(dw, CFG, DW_CFG_DMA_EN); return 0; - } +static struct dev_pm_ops dw_dev_pm_ops = { + .suspend_noirq = dw_suspend_noirq, + .resume_noirq = dw_resume_noirq, +}; + static struct platform_driver dw_driver = { .remove = __exit_p(dw_remove), .shutdown = dw_shutdown, - .suspend_late = dw_suspend_late, - .resume_early = dw_resume_early, .driver = { .name = "dw_dmac", + .pm = &dw_dev_pm_ops, }, }; |